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Title: The manager of a grocery store has taken a random sample of 100 customers. The average length of ... Post by: zns889 on Jan 26, 2018 The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took the customers in the sample to check out was 3.1 minutes. The population standard deviation is known to be 0.5 minute. We want to test to determine whether or not the mean waiting time of all customers is significantly more than 3 minutes. The p-value is _____.
a. .025 b. .0456 c. .05 d. .0228 Title: The manager of a grocery store has taken a random sample of 100 customers. The average length of ... Post by: gomeza on Jan 26, 2018 Content hidden
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